Equations Review

Front

What is the solution to the equation 21 = 5 - r?

Back

r = -16

Front

Solve for x in the equation -6x = 30.

Back

x = -5

Front

What is the value of x in the equation x + 7 = 12?

Back

x = 5

Front

Find the value of d in the equation 2d + 7 = 9.

Back

d = 1

Front

What is the solution to the equation -5x = 25?

Back

x = -5

Front

What does it mean to isolate a variable in an equation?

Back

To isolate a variable means to manipulate the equation so that the variable is on one side and all other terms are on the opposite side.

Front

What is the first step to solve the equation x + 3 = 10?

Back

Subtract 3 from both sides to isolate x.

Front

How do you solve the equation 4x - 8 = 0?

Back

Add 8 to both sides, then divide by 4 to find x.

Front

What is the solution to the equation 3x + 6 = 15?

Back

x = 3

Front

What is the principle of balancing equations?

Back

The principle states that whatever you do to one side of the equation, you must do to the other side to maintain equality.